View source: R/treeplyr_functions.R
group_by.treedata | R Documentation |
treedata
This function can be used to group a treedata object by some factor.
## S3 method for class 'treedata' group_by(.data, ..., add = FALSE) ## S3 method for class 'grouped_treedata' ungroup(x, ...)
.data |
An object of class |
... |
The name of the grouping factor. |
add |
By default, when add = FALSE, group_by will override existing groups. To instead add to the existing groups, use add = TRUE |
x |
An object of class |
Groups the data frame and phylogeny by one of the factors in the data table.
An object of class grouped_treedata
.
summarize
data(anolis) td <- make.treedata(anolis$phy, anolis$dat) tdGrouped <- group_by(td, ecomorph) summarize(tdGrouped, ntips = length(phy$tip.label), totalBL = sum(phy$edge.length), meanSVL = mean(SVL), sdSVL = sd(SVL))
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